How to Use a Triple-Beam Balance

1
How to Use a Triple-Beam Balance
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2
Parts of a Balance
Zero Mark
Sliders
Pan
Thumbscrew
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3
Balance Setup

• Move all three sliders so that they read zero.
• Make sure that there is nothing on the pan and
  that it is clean.
• Check to see if the balance reads zero.

Balance reads zero click here
Balance doesnt read zero click here
Show the parts of a balance
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4
Balance Setup

• Your balance isnt reading zero so you need to
  turn the thumbscrew to adjust the balance until
  it reads zero

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Show the parts of a balance
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5
Balance Setup

• Your balance is ready to measure. Place object to
  be weighed on the pan. Make sure that no part of
  the object is supported by the table.

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6
Moving Sliders

• Move the sliders, beginning with the largest.
  When moving a slider causes the balance to tip,
  move the slider back to the previous position.
• Move the next slider until it tips the balance.
  Place is in the previous position.
• Move the final slider until the balance reads
  zero.

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7
Reading Sliders

• Read each of the sliders and add their weights
  together.

The sliders indicate the mass is
373 g
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8
Reading Sliders

• When you read the last slider, notice that the
  smaller lines represent tenths.

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9
Reading Sliders

• This measurement is past the third line following
  the 3 on small slider. This indicates a mass of

373.3 g
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10
Reading Sliders

• To maximize the number of digits in the
  measurement we estimate the last number. Since
  the slider is actually about halfway between 3.3
  and 3.4, we record 3.35

373.35 g
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